Method for processing event of projector using pointer and an electronic device thereof

Abstract

A method for performing a function of an electronic device includes outputting an image outside the electronic device, capturing the output image; detecting a trace of a pointer in the captured image, and performing a preset function corresponding to the detected trace of the pointer.

What is claimed is: 
     
         1 . A method in an electronic device, comprising:
 outputting an image outside the electronic device;   capturing the output image;   detecting a trace of a pointer in the captured image; and   performing a preset function corresponding to the detected trace of the pointer.   
     
     
         2 . The method of  claim 1 , wherein outputting of the image outside the electronic device comprises:
 outputting the image through a projector,   wherein capturing of the output image further comprises:   capturing the image through a projector lens, and   wherein the capturing of the image through the projector lens comprises:   capturing the image using at least one of:
 a mechanical device which reflects the image obtained from the projector lens, and 
 an electronic image processor which forwards the image obtained from the projector lens. 
   
     
     
         3 . The method of  claim 1 , wherein capturing of the output image comprises:
 capturing the image through a camera lens.   
     
     
         4 . The method of  claim 1 , wherein outputting of the image outside the electronic device comprises:
 outputting the image outside the electronic device using at least one of wired or wireless network equipment and a wired data output device of the electronic device.   
     
     
         5 . The method of  claim 1 , wherein detecting of the trace of the pointer in the captured image comprises:
 determining a region of the output image;   searching pixels of the captured image for a pixel having the same color as a color of the pointer; and   detecting the trace of the pointer based on the searched pixel.   
     
     
         6 . The method of  claim 5 , further comprising, after determining the region of the output image:
 in response to determining there is a view point difference between the output image and the captured image, adjusting the view point difference; and   determining an image of the adjusted view point difference as the captured image.   
     
     
         7 . The method of  claim 1 , wherein detecting of the trace of the pointer in the captured image comprises:
 detecting at least one of a color, a light spreading, a shape, and a size of the pointer in the captured image; and   determining an operation mode of the electronic device based on at least one of the color, the light spreading, the shape, and the size of the detected pointer.   
     
     
         8 . The method of  claim 7 , wherein performing of the preset function corresponding to the detected trace of the pointer comprises:
 determining the function corresponding to the detected point trace among functions prestored on a trace basis according to the determined operation mode of the electronic device; and   performing the determined function.   
     
     
         9 . The method of  claim 8 , wherein the performing of the determined function comprises:
 in response to determining the determined operation mode of the electronic device is a first mode, at least one of   performing a preset function corresponding to the trace of the pointer which moves in the image,   performing a preset function corresponding to the trace of the pointer which moves out of the image, or   outputting graphical data indicating the trace of the pointer which moves inside the image; and   in response to determining the determined operation mode of the electronic device is a second mode, performing a preset function corresponding to the trace of the pointer which moves inside a preset region of the image.   
     
     
         10 . The method of  claim 1 , wherein the preset function corresponding to the trace comprises at least one of page switching, writing and deletion mode switching, deletion of whole data generated in the writing mode, document section movement, new window popup, new tab popup, refresh, window exit, tab switching, movement to taskbar, window resizing, and quick search box popup. 
     
     
         11 . An electronic device for performing a function, comprising:
 one or more processors;   an image output and capturing device;   a memory; and   one or more programs stored to the memory configured to be executed by the one or more processors,   wherein the program comprises instructions , when executed, cause the one or more processor to:   output an image outside the electronic device,   capture the output image,   detect a trace of a pointer in the captured image, and   perform a preset function corresponding to the detected trace of the pointer.   
     
     
         12 . The electronic device of  claim 11 , further comprising:
 a projector,   wherein the projector is configured to:
 output the image, and 
 capture the image using at least one of a mechanical device which reflects the image obtained from a projector lens, and 
   an electronic image processor is configured to forward the image obtained from the projector lens.   
     
     
         13 . The electronic device of  claim 11 , wherein the image output and capturing device comprises a camera and is configured to capture the image through a camera lens. 
     
     
         14 . The electronic device of  claim 11 , wherein the image output and capturing device comprise at least one of:
 wired network equipment,   wireless network equipment, and   a wired data output device for outputting the image to other display device than the electronic device.   
     
     
         15 . The electronic device of  claim 11 , wherein the program comprises instructions , when executed, cause the one or more processor to:
 determine a region of the output image,   search pixels of the captured image for a pixel having the same color as a color of the pointer, and   detect the trace of the pointer based on the searched pixel.   
     
     
         16 . The electronic device of  claim 14 , wherein the program further comprises instructions, when executed, cause the one or more processor to:,
 after determining the region of the output image, and in response to determining there is a view point difference between the output image and the captured image, adjust the view point difference and determining an image of the adjusted view point difference as the captured image.   
     
     
         17 . The electronic device of  claim 11 , wherein the program comprises instructions, when executed, cause the one or more processor to:
 detect at least one of a color, a light spreading, a shape, and a size of the pointer in the captured image,   determine an operation mode of the electronic device based on at least one of the color, the light spreading, the shape, and the size of the detected pointer, and thereby detect the trace of the pointer.   
     
     
         18 . The electronic device of  claim 16 , wherein the program comprises instructions, when executed, cause the one or more processor to:
 determine the function corresponding to the detected point trace among functions prestored per trace according to the determined operation mode of the electronic device, and   perform the determined function.   
     
     
         19 . The electronic device of  claim 17 , wherein program comprises instructions, when executed, causes the one or more processor to:
 in response to determining the determined operation mode of the electronic device is a first mode, at least one of:   perform a preset function corresponding to the trace of the pointer which moves in the image,   perform a preset function corresponding to the trace of the pointer which moves out of the image, or   output graphical data indicating the trace of the pointer which moves inside the image, and   in response to determining the determined operation mode of the electronic device is a second mode, perform a preset function corresponding to the trace of the pointer which moves inside a preset region of the image.   
     
     
         20 . The electronic device of  claim 11 , wherein the preset function corresponding to the trace comprises at least one of page switching, writing and deletion mode switching, deletion of whole data generated in the writing mode, document section movement, new window popup, new tab popup, refresh, window exit, tab switching, movement to taskbar, window resizing, and quick search box popup.